path: root/include/linux/sfp.h

#ifndef LINUX_SFP_H
#define LINUX_SFP_H

#include <linux/phy.h>

struct sfp_eeprom_base {
	u8 phys_id;
	u8 phys_ext_id;
	u8 connector;
#if defined __BIG_ENDIAN_BITFIELD
	u8 e10g_base_er:1;
	u8 e10g_base_lrm:1;
	u8 e10g_base_lr:1;
	u8 e10g_base_sr:1;
	u8 if_1x_sx:1;
	u8 if_1x_lx:1;
	u8 if_1x_copper_active:1;
	u8 if_1x_copper_passive:1;

	u8 escon_mmf_1310_led:1;
	u8 escon_smf_1310_laser:1;
	u8 sonet_oc192_short_reach:1;
	u8 sonet_reach_bit1:1;
	u8 sonet_reach_bit2:1;
	u8 sonet_oc48_long_reach:1;
	u8 sonet_oc48_intermediate_reach:1;
	u8 sonet_oc48_short_reach:1;

	u8 unallocated_5_7:1;
	u8 sonet_oc12_smf_long_reach:1;
	u8 sonet_oc12_smf_intermediate_reach:1;
	u8 sonet_oc12_short_reach:1;
	u8 unallocated_5_3:1;
	u8 sonet_oc3_smf_long_reach:1;
	u8 sonet_oc3_smf_intermediate_reach:1;
	u8 sonet_oc3_short_reach:1;

	u8 e_base_px:1;
	u8 e_base_bx10:1;
	u8 e100_base_fx:1;
	u8 e100_base_lx:1;
	u8 e1000_base_t:1;
	u8 e1000_base_cx:1;
	u8 e1000_base_lx:1;
	u8 e1000_base_sx:1;

	u8 fc_ll_v:1;
	u8 fc_ll_s:1;
	u8 fc_ll_i:1;
	u8 fc_ll_l:1;
	u8 fc_ll_m:1;
	u8 fc_tech_sa:1;
	u8 fc_tech_lc:1;
	u8 fc_tech_electrical_inter_enclosure:1;

	u8 fc_tech_electrical_intra_enclosure:1;
	u8 fc_tech_sn:1;
	u8 fc_tech_sl:1;
	u8 fc_tech_ll:1;
	u8 sfp_ct_active:1;
	u8 sfp_ct_passive:1;
	u8 unallocated_8_1:1;
	u8 unallocated_8_0:1;

	u8 fc_media_tw:1;
	u8 fc_media_tp:1;
	u8 fc_media_mi:1;
	u8 fc_media_tv:1;
	u8 fc_media_m6:1;
	u8 fc_media_m5:1;
	u8 unallocated_9_1:1;
	u8 fc_media_sm:1;

	u8 fc_speed_1200:1;
	u8 fc_speed_800:1;
	u8 fc_speed_1600:1;
	u8 fc_speed_400:1;
	u8 fc_speed_3200:1;
	u8 fc_speed_200:1;
	u8 unallocated_10_1:1;
	u8 fc_speed_100:1;
#elif defined __LITTLE_ENDIAN_BITFIELD
	u8 if_1x_copper_passive:1;
	u8 if_1x_copper_active:1;
	u8 if_1x_lx:1;
	u8 if_1x_sx:1;
	u8 e10g_base_sr:1;
	u8 e10g_base_lr:1;
	u8 e10g_base_lrm:1;
	u8 e10g_base_er:1;

	u8 sonet_oc3_short_reach:1;
	u8 sonet_oc3_smf_intermediate_reach:1;
	u8 sonet_oc3_smf_long_reach:1;
	u8 unallocated_5_3:1;
	u8 sonet_oc12_short_reach:1;
	u8 sonet_oc12_smf_intermediate_reach:1;
	u8 sonet_oc12_smf_long_reach:1;
	u8 unallocated_5_7:1;

	u8 sonet_oc48_short_reach:1;
	u8 sonet_oc48_intermediate_reach:1;
	u8 sonet_oc48_long_reach:1;
	u8 sonet_reach_bit2:1;
	u8 sonet_reach_bit1:1;
	u8 sonet_oc192_short_reach:1;
	u8 escon_smf_1310_laser:1;
	u8 escon_mmf_1310_led:1;

	u8 e1000_base_sx:1;
	u8 e1000_base_lx:1;
	u8 e1000_base_cx:1;
	u8 e1000_base_t:1;
	u8 e100_base_lx:1;
	u8 e100_base_fx:1;
	u8 e_base_bx10:1;
	u8 e_base_px:1;

	u8 fc_tech_electrical_inter_enclosure:1;
	u8 fc_tech_lc:1;
	u8 fc_tech_sa:1;
	u8 fc_ll_m:1;
	u8 fc_ll_l:1;
	u8 fc_ll_i:1;
	u8 fc_ll_s:1;
	u8 fc_ll_v:1;

	u8 unallocated_8_0:1;
	u8 unallocated_8_1:1;
	u8 sfp_ct_passive:1;
	u8 sfp_ct_active:1;
	u8 fc_tech_ll:1;
	u8 fc_tech_sl:1;
	u8 fc_tech_sn:1;
	u8 fc_tech_electrical_intra_enclosure:1;

	u8 fc_media_sm:1;
	u8 unallocated_9_1:1;
	u8 fc_media_m5:1;
	u8 fc_media_m6:1;
	u8 fc_media_tv:1;
	u8 fc_media_mi:1;
	u8 fc_media_tp:1;
	u8 fc_media_tw:1;

	u8 fc_speed_100:1;
	u8 unallocated_10_1:1;
	u8 fc_speed_200:1;
	u8 fc_speed_3200:1;
	u8 fc_speed_400:1;
	u8 fc_speed_1600:1;
	u8 fc_speed_800:1;
	u8 fc_speed_1200:1;
#else
#error Unknown Endian
#endif
	u8 encoding;
	u8 br_nominal;
	u8 rate_id;
	u8 link_len[6];
	char vendor_name[16];
	u8 extended_cc;
	char vendor_oui[3];
	char vendor_pn[16];
	char vendor_rev[4];
	union {
		__be16 optical_wavelength;
		__be16 cable_compliance;
		struct {
#if defined __BIG_ENDIAN_BITFIELD
			u8 reserved60_2:6;
			u8 fc_pi_4_app_h:1;
			u8 sff8431_app_e:1;
			u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
			u8 sff8431_app_e:1;
			u8 fc_pi_4_app_h:1;
			u8 reserved60_2:6;
			u8 reserved61:8;
#else
#error Unknown Endian
#endif
		} __packed passive;
		struct {
#if defined __BIG_ENDIAN_BITFIELD
			u8 reserved60_4:4;
			u8 fc_pi_4_lim:1;
			u8 sff8431_lim:1;
			u8 fc_pi_4_app_h:1;
			u8 sff8431_app_e:1;
			u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
			u8 sff8431_app_e:1;
			u8 fc_pi_4_app_h:1;
			u8 sff8431_lim:1;
			u8 fc_pi_4_lim:1;
			u8 reserved60_4:4;
			u8 reserved61:8;
#else
#error Unknown Endian
#endif
		} __packed active;
	} __packed;
	u8 reserved62;
	u8 cc_base;
} __packed;

struct sfp_eeprom_ext {
	__be16 options;
	u8 br_max;
	u8 br_min;
	char vendor_sn[16];
	char datecode[8];
	u8 diagmon;
	u8 enhopts;
	u8 sff8472_compliance;
	u8 cc_ext;
} __packed;

/**
 * struct sfp_eeprom_id - raw SFP module identification information
 * @base: base SFP module identification structure
 * @ext: extended SFP module identification structure
 *
 * See the SFF-8472 specification and related documents for the definition
 * of these structure members. This can be obtained from
 * https://www.snia.org/technology-communities/sff/specifications
 */
struct sfp_eeprom_id {
	struct sfp_eeprom_base base;
	struct sfp_eeprom_ext ext;
} __packed;

struct sfp_diag {
	__be16 temp_high_alarm;
	__be16 temp_low_alarm;
	__be16 temp_high_warn;
	__be16 temp_low_warn;
	__be16 volt_high_alarm;
	__be16 volt_low_alarm;
	__be16 volt_high_warn;
	__be16 volt_low_warn;
	__be16 bias_high_alarm;
	__be16 bias_low_alarm;
	__be16 bias_high_warn;
	__be16 bias_low_warn;
	__be16 txpwr_high_alarm;
	__be16 txpwr_low_alarm;
	__be16 txpwr_high_warn;
	__be16 txpwr_low_warn;
	__be16 rxpwr_high_alarm;
	__be16 rxpwr_low_alarm;
	__be16 rxpwr_high_warn;
	__be16 rxpwr_low_warn;
	__be16 laser_temp_high_alarm;
	__be16 laser_temp_low_alarm;
	__be16 laser_temp_high_warn;
	__be16 laser_temp_low_warn;
	__be16 tec_cur_high_alarm;
	__be16 tec_cur_low_alarm;
	__be16 tec_cur_high_warn;
	__be16 tec_cur_low_warn;
	__be32 cal_rxpwr4;
	__be32 cal_rxpwr3;
	__be32 cal_rxpwr2;
	__be32 cal_rxpwr1;
	__be32 cal_rxpwr0;
	__be16 cal_txi_slope;
	__be16 cal_txi_offset;
	__be16 cal_txpwr_slope;
	__be16 cal_txpwr_offset;
	__be16 cal_t_slope;
	__be16 cal_t_offset;
	__be16 cal_v_slope;
	__be16 cal_v_offset;
} __packed;

/* SFF8024 defined constants */
enum {
	SFF8024_ID_UNK			= 0x00,
	SFF8024_ID_SFF_8472		= 0x02,
	SFF8024_ID_SFP			= 0x03,
	SFF8024_ID_DWDM_SFP		= 0x0b,
	SFF8024_ID_QSFP_8438		= 0x0c,
	SFF8024_ID_QSFP_8436_8636	= 0x0d,
	SFF8024_ID_QSFP28_8636		= 0x11,
	SFF8024_ID_QSFP_DD		= 0x18,
	SFF8024_ID_OSFP			= 0x19,
	SFF8024_ID_DSFP			= 0x1B,
	SFF8024_ID_QSFP_PLUS_CMIS	= 0x1E,
	SFF8024_ID_SFP_DD_CMIS		= 0x1F,
	SFF8024_ID_SFP_PLUS_CMIS	= 0x20,

	SFF8024_ENCODING_UNSPEC		= 0x00,
	SFF8024_ENCODING_8B10B		= 0x01,
	SFF8024_ENCODING_4B5B		= 0x02,
	SFF8024_ENCODING_NRZ		= 0x03,
	SFF8024_ENCODING_8472_MANCHESTER= 0x04,
	SFF8024_ENCODING_8472_SONET	= 0x05,
	SFF8024_ENCODING_8472_64B66B	= 0x06,
	SFF8024_ENCODING_8436_MANCHESTER= 0x06,
	SFF8024_ENCODING_8436_SONET	= 0x04,
	SFF8024_ENCODING_8436_64B66B	= 0x05,
	SFF8024_ENCODING_256B257B	= 0x07,
	SFF8024_ENCODING_PAM4		= 0x08,

	SFF8024_CONNECTOR_UNSPEC	= 0x00,
	/* codes 01-05 not supportable on SFP, but some modules have single SC */
	SFF8024_CONNECTOR_SC		= 0x01,
	SFF8024_CONNECTOR_FIBERJACK	= 0x06,
	SFF8024_CONNECTOR_LC		= 0x07,
	SFF8024_CONNECTOR_MT_RJ		= 0x08,
	SFF8024_CONNECTOR_MU		= 0x09,
	SFF8024_CONNECTOR_SG		= 0x0a,
	SFF8024_CONNECTOR_OPTICAL_PIGTAIL= 0x0b,
	SFF8024_CONNECTOR_MPO_1X12	= 0x0c,
	SFF8024_CONNECTOR_MPO_2X16	= 0x0d,
	SFF8024_CONNECTOR_HSSDC_II	= 0x20,
	SFF8024_CONNECTOR_COPPER_PIGTAIL= 0x21,
	SFF8024_CONNECTOR_RJ45		= 0x22,
	SFF8024_CONNECTOR_NOSEPARATE	= 0x23,
	SFF8024_CONNECTOR_MXC_2X16	= 0x24,

	SFF8024_ECC_UNSPEC		= 0x00,
	SFF8024_ECC_100G_25GAUI_C2M_AOC	= 0x01,
	SFF8024_ECC_100GBASE_SR4_25GBASE_SR = 0x02,
	SFF8024_ECC_100GBASE_LR4_25GBASE_LR = 0x03,
	SFF8024_ECC_100GBASE_ER4_25GBASE_ER = 0x04,
	SFF8024_ECC_100GBASE_SR10	= 0x05,
	SFF8024_ECC_100GBASE_CR4	= 0x0b,
	SFF8024_ECC_25GBASE_CR_S	= 0x0c,
	SFF8024_ECC_25GBASE_CR_N	= 0x0d,
	SFF8024_ECC_10GBASE_T_SFI	= 0x16,
	SFF8024_ECC_10GBASE_T_SR	= 0x1c,
	SFF8024_ECC_5GBASE_T		= 0x1d,
	SFF8024_ECC_2_5GBASE_T		= 0x1e,
};

/* SFP EEPROM registers */
enum {
	SFP_PHYS_ID			= 0,

	SFP_PHYS_EXT_ID			= 1,
	SFP_PHYS_EXT_ID_SFP		= 0x04,

	SFP_CONNECTOR			= 2,
	SFP_COMPLIANCE			= 3,
	SFP_ENCODING			= 11,
	SFP_BR_NOMINAL			= 12,
	SFP_RATE_ID			= 13,
	SFF_RID_8079			= 0x01,
	SFF_RID_8431_RX_ONLY		= 0x02,
	SFF_RID_8431_TX_ONLY		= 0x04,
	SFF_RID_8431			= 0x06,
	SFF_RID_10G8G			= 0x0e,

	SFP_LINK_LEN_SM_KM		= 14,
	SFP_LINK_LEN_SM_100M		= 15,
	SFP_LINK_LEN_50UM_OM2_10M	= 16,
	SFP_LINK_LEN_62_5UM_OM1_10M	= 17,
	SFP_LINK_LEN_COPPER_1M		= 18,
	SFP_LINK_LEN_50UM_OM4_10M	= 18,
	SFP_LINK_LEN_50UM_OM3_10M	= 19,
	SFP_VENDOR_NAME			= 20,
	SFP_VENDOR_OUI			= 37,
	SFP_VENDOR_PN			= 40,
	SFP_VENDOR_REV			= 56,
	SFP_OPTICAL_WAVELENGTH_MSB	= 60,
	SFP_OPTICAL_WAVELENGTH_LSB	= 61,
	SFP_CABLE_SPEC			= 60,
	SFP_CC_BASE			= 63,

	SFP_OPTIONS			= 64,	/* 2 bytes, MSB, LSB */
	SFP_OPTIONS_HIGH_POWER_LEVEL	= BIT(13),
	SFP_OPTIONS_PAGING_A2		= BIT(12),
	SFP_OPTIONS_RETIMER		= BIT(11),
	SFP_OPTIONS_COOLED_XCVR		= BIT(10),
	SFP_OPTIONS_POWER_DECL		= BIT(9),
	SFP_OPTIONS_RX_LINEAR_OUT	= BIT(8),
	SFP_OPTIONS_RX_DECISION_THRESH	= BIT(7),
	SFP_OPTIONS_TUNABLE_TX		= BIT(6),
	SFP_OPTIONS_RATE_SELECT		= BIT(5),
	SFP_OPTIONS_TX_DISABLE		= BIT(4),
	SFP_OPTIONS_TX_FAULT		= BIT(3),
	SFP_OPTIONS_LOS_INVERTED	= BIT(2),
	SFP_OPTIONS_LOS_NORMAL		= BIT(1),

	SFP_BR_MAX			= 66,
	SFP_BR_MIN			= 67,
	SFP_VENDOR_SN			= 68,
	SFP_DATECODE			= 84,

	SFP_DIAGMON			= 92,
	SFP_DIAGMON_DDM			= BIT(6),
	SFP_DIAGMON_INT_CAL		= BIT(5),
	SFP_DIAGMON_EXT_CAL		= BIT(4),
	SFP_DIAGMON_RXPWR_AVG		= BIT(3),
	SFP_DIAGMON_ADDRMODE		= BIT(2),

	SFP_ENHOPTS			= 93,
	SFP_ENHOPTS_ALARMWARN		= BIT(7),
	SFP_ENHOPTS_SOFT_TX_DISABLE	= BIT(6),
	SFP_ENHOPTS_SOFT_TX_FAULT	= BIT(5),
	SFP_ENHOPTS_SOFT_RX_LOS		= BIT(4),
	SFP_ENHOPTS_SOFT_RATE_SELECT	= BIT(3),
	SFP_ENHOPTS_APP_SELECT_SFF8079	= BIT(2),
	SFP_ENHOPTS_SOFT_RATE_SFF8431	= BIT(1),

	SFP_SFF8472_COMPLIANCE		= 94,
	SFP_SFF8472_COMPLIANCE_NONE	= 0x00,
	SFP_SFF8472_COMPLIANCE_REV9_3	= 0x01,
	SFP_SFF8472_COMPLIANCE_REV9_5	= 0x02,
	SFP_SFF8472_COMPLIANCE_REV10_2	= 0x03,
	SFP_SFF8472_COMPLIANCE_REV10_4	= 0x04,
	SFP_SFF8472_COMPLIANCE_REV11_0	= 0x05,
	SFP_SFF8472_COMPLIANCE_REV11_3	= 0x06,
	SFP_SFF8472_COMPLIANCE_REV11_4	= 0x07,
	SFP_SFF8472_COMPLIANCE_REV12_0	= 0x08,

	SFP_CC_EXT			= 95,
};

/* SFP Diagnostics */
enum {
	/* Alarm and warnings stored MSB at lower address then LSB */
	SFP_TEMP_HIGH_ALARM		= 0,
	SFP_TEMP_LOW_ALARM		= 2,
	SFP_TEMP_HIGH_WARN		= 4,
	SFP_TEMP_LOW_WARN		= 6,
	SFP_VOLT_HIGH_ALARM		= 8,
	SFP_VOLT_LOW_ALARM		= 10,
	SFP_VOLT_HIGH_WARN		= 12,
	SFP_VOLT_LOW_WARN		= 14,
	SFP_BIAS_HIGH_ALARM		= 16,
	SFP_BIAS_LOW_ALARM		= 18,
	SFP_BIAS_HIGH_WARN		= 20,
	SFP_BIAS_LOW_WARN		= 22,
	SFP_TXPWR_HIGH_ALARM		= 24,
	SFP_TXPWR_LOW_ALARM		= 26,
	SFP_TXPWR_HIGH_WARN		= 28,
	SFP_TXPWR_LOW_WARN		= 30,
	SFP_RXPWR_HIGH_ALARM		= 32,
	SFP_RXPWR_LOW_ALARM		= 34,
	SFP_RXPWR_HIGH_WARN		= 36,
	SFP_RXPWR_LOW_WARN		= 38,
	SFP_LASER_TEMP_HIGH_ALARM	= 40,
	SFP_LASER_TEMP_LOW_ALARM	= 42,
	SFP_LASER_TEMP_HIGH_WARN	= 44,
	SFP_LASER_TEMP_LOW_WARN		= 46,
	SFP_TEC_CUR_HIGH_ALARM		= 48,
	SFP_TEC_CUR_LOW_ALARM		= 50,
	SFP_TEC_CUR_HIGH_WARN		= 52,
	SFP_TEC_CUR_LOW_WARN		= 54,
	SFP_CAL_RXPWR4			= 56,
	SFP_CAL_RXPWR3			= 60,
	SFP_CAL_RXPWR2			= 64,
	SFP_CAL_RXPWR1			= 68,
	SFP_CAL_RXPWR0			= 72,
	SFP_CAL_TXI_SLOPE		= 76,
	SFP_CAL_TXI_OFFSET		= 78,
	SFP_CAL_TXPWR_SLOPE		= 80,
	SFP_CAL_TXPWR_OFFSET		= 82,
	SFP_CAL_T_SLOPE			= 84,
	SFP_CAL_T_OFFSET		= 86,
	SFP_CAL_V_SLOPE			= 88,
	SFP_CAL_V_OFFSET		= 90,
	SFP_CHKSUM			= 95,

	SFP_TEMP			= 96,
	SFP_VCC				= 98,
	SFP_TX_BIAS			= 100,
	SFP_TX_POWER			= 102,
	SFP_RX_POWER			= 104,
	SFP_LASER_TEMP			= 106,
	SFP_TEC_CUR			= 108,

	SFP_STATUS			= 110,
	SFP_STATUS_TX_DISABLE		= BIT(7),
	SFP_STATUS_TX_DISABLE_FORCE	= BIT(6),
	SFP_STATUS_RS0_SELECT		= BIT(3),
	SFP_STATUS_TX_FAULT		= BIT(2),
	SFP_STATUS_RX_LOS		= BIT(1),
	SFP_ALARM0			= 112,
	SFP_ALARM0_TEMP_HIGH		= BIT(7),
	SFP_ALARM0_TEMP_LOW		= BIT(6),
	SFP_ALARM0_VCC_HIGH		= BIT(5),
	SFP_ALARM0_VCC_LOW		= BIT(4),
	SFP_ALARM0_TX_BIAS_HIGH		= BIT(3),
	SFP_ALARM0_TX_BIAS_LOW		= BIT(2),
	SFP_ALARM0_TXPWR_HIGH		= BIT(1),
	SFP_ALARM0_TXPWR_LOW		= BIT(0),

	SFP_ALARM1			= 113,
	SFP_ALARM1_RXPWR_HIGH		= BIT(7),
	SFP_ALARM1_RXPWR_LOW		= BIT(6),

	SFP_WARN0			= 116,
	SFP_WARN0_TEMP_HIGH		= BIT(7),
	SFP_WARN0_TEMP_LOW		= BIT(6),
	SFP_WARN0_VCC_HIGH		= BIT(5),
	SFP_WARN0_VCC_LOW		= BIT(4),
	SFP_WARN0_TX_BIAS_HIGH		= BIT(3),
	SFP_WARN0_TX_BIAS_LOW		= BIT(2),
	SFP_WARN0_TXPWR_HIGH		= BIT(1),
	SFP_WARN0_TXPWR_LOW		= BIT(0),

	SFP_WARN1			= 117,
	SFP_WARN1_RXPWR_HIGH		= BIT(7),
	SFP_WARN1_RXPWR_LOW		= BIT(6),

	SFP_EXT_STATUS			= 118,
	SFP_EXT_STATUS_RS1_SELECT	= BIT(3),
	SFP_EXT_STATUS_PWRLVL_SELECT	= BIT(0),

	SFP_VSL				= 120,
	SFP_PAGE			= 127,
};

struct fwnode_handle;
struct ethtool_eeprom;
struct ethtool_modinfo;
struct sfp_bus;

/**
 * struct sfp_upstream_ops - upstream operations structure
 * @attach: called when the sfp socket driver is bound to the upstream
 *   (mandatory).
 * @detach: called when the sfp socket driver is unbound from the upstream
 *   (mandatory).
 * @module_insert: called after a module has been detected to determine
 *   whether the module is supported for the upstream device.
 * @module_remove: called after the module has been removed.
 * @module_start: called after the PHY probe step
 * @module_stop: called before the PHY is removed
 * @link_down: called when the link is non-operational for whatever
 *   reason.
 * @link_up: called when the link is operational.
 * @connect_phy: called when an I2C accessible PHY has been detected
 *   on the module.
 * @disconnect_phy: called when a module with an I2C accessible PHY has
 *   been removed.
 */
struct sfp_upstream_ops {
	void (*attach)(void *priv, struct sfp_bus *bus);
	void (*detach)(void *priv, struct sfp_bus *bus);
	int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
	void (*module_remove)(void *priv);
	int (*module_start)(void *priv);
	void (*module_stop)(void *priv);
	void (*link_down)(void *priv);
	void (*link_up)(void *priv);
	int (*connect_phy)(void *priv, struct phy_device *);
	void (*disconnect_phy)(void *priv, struct phy_device *);
};

#if IS_ENABLED(CONFIG_SFP)
int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
		   unsigned long *support);
bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
		       unsigned long *support, unsigned long *interfaces);
phy_interface_t sfp_select_interface(struct sfp_bus *bus,
				     const unsigned long *link_modes);

int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo);
int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
			  u8 *data);
int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
				  const struct ethtool_module_eeprom *page,
				  struct netlink_ext_ack *extack);
void sfp_upstream_start(struct sfp_bus *bus);
void sfp_upstream_stop(struct sfp_bus *bus);
void sfp_upstream_set_signal_rate(struct sfp_bus *bus, unsigned int rate_kbd);
void sfp_bus_put(struct sfp_bus *bus);
struct sfp_bus *sfp_bus_find_fwnode(const struct fwnode_handle *fwnode);
int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
			 const struct sfp_upstream_ops *ops);
void sfp_bus_del_upstream(struct sfp_bus *bus);
const char *sfp_get_name(struct sfp_bus *bus);
#else
static inline int sfp_parse_port(struct sfp_bus *bus,
				 const struct sfp_eeprom_id *id,
				 unsigned long *support)
{
	return PORT_OTHER;
}

static inline bool sfp_may_have_phy(struct sfp_bus *bus,
				    const struct sfp_eeprom_id *id)
{
	return false;
}

static inline void sfp_parse_support(struct sfp_bus *bus,
				     const struct sfp_eeprom_id *id,
				     unsigned long *support,
				     unsigned long *interfaces)
{
}

static inline phy_interface_t sfp_select_interface(struct sfp_bus *bus,
						const unsigned long *link_modes)
{
	return PHY_INTERFACE_MODE_NA;
}

static inline int sfp_get_module_info(struct sfp_bus *bus,
				      struct ethtool_modinfo *modinfo)
{
	return -EOPNOTSUPP;
}

static inline int sfp_get_module_eeprom(struct sfp_bus *bus,
					struct ethtool_eeprom *ee, u8 *data)
{
	return -EOPNOTSUPP;
}

static inline int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
						const struct ethtool_module_eeprom *page,
						struct netlink_ext_ack *extack)
{
	return -EOPNOTSUPP;
}

static inline void sfp_upstream_start(struct sfp_bus *bus)
{
}

static inline void sfp_upstream_stop(struct sfp_bus *bus)
{
}

static inline void sfp_upstream_set_signal_rate(struct sfp_bus *bus,
						unsigned int rate_kbd)
{
}

static inline void sfp_bus_put(struct sfp_bus *bus)
{
}

static inline struct sfp_bus *
sfp_bus_find_fwnode(const struct fwnode_handle *fwnode)
{
	return NULL;
}

static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
				       const struct sfp_upstream_ops *ops)
{
	return 0;
}

static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
{
}

static inline const char *sfp_get_name(struct sfp_bus *bus)
{
	return NULL;
}
#endif

#endif